CombineManifests combines given manifests with a base manifest and adds yaml style separation.

GenerateCombinedGlobalManifest creates a temporary manifest yaml by combining all standard global resource manifests in crdsDir.

GenerateCombinedNamespacedManifest creates a temporary manifest yaml by combining all standard namespaced resource manifests in deployDir.

Scanner scans a yaml manifest file for manifest tokens delimited by "---".